CA2562254C - Procede et systeme de conversion analogique-numerique faisant appel a la modulation de largeur d'impulsion (mli) numerique - Google Patents

Procede et systeme de conversion analogique-numerique faisant appel a la modulation de largeur d'impulsion (mli) numerique Download PDF

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Publication number
CA2562254C
CA2562254C CA002562254A CA2562254A CA2562254C CA 2562254 C CA2562254 C CA 2562254C CA 002562254 A CA002562254 A CA 002562254A CA 2562254 A CA2562254 A CA 2562254A CA 2562254 C CA2562254 C CA 2562254C
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Canada
Prior art keywords
signal
digital
clock
feedback signal
digital pulse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002562254A
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English (en)
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CA2562254A1 (fr
Inventor
Pallab Midya
Matthew R. Miller
Patrick L. Rakers
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Motorola Solutions Inc
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Motorola Inc
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Application filed by Motorola Inc filed Critical Motorola Inc
Publication of CA2562254A1 publication Critical patent/CA2562254A1/fr
Application granted granted Critical
Publication of CA2562254C publication Critical patent/CA2562254C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval
    • H03M1/504—Analogue/digital converters with intermediate conversion to time interval using pulse width modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Amplifiers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

L'invention concerne un système et un procédé de conversion analogique-numérique faisant appel à la modulation de largeur d'impulsion (MLI) numérique. Le procédé et le système selon l'invention convertissent un signal d'entrée analogique en un signal numérique sous forme modulée par impulsions codées (MIC). Cette invention utilise un circuit de retour pour effectuer une MLI du signal d'entrée analogique. Le signal MLI est ensuite décimé pour obtenir le signal numérique sous forme MIC. Le système selon l'invention nécessite une fréquence de fonctionnement inférieure et dissipe moins de puissance comparativement aux systèmes selon l'art antérieur fournissant la même fréquence d'échantillonnage et la même résolution. Le fonctionnement à une fréquence inférieure est possible par obtention de deux échantillons de chaque impulsion du signal MLI, le premier échantillon étant obtenu à partir du facteur de marche droit et le second échantillon à partir du facteur de marche gauche. L'invention se caractérise en outre par une complexité de mise en oeuvre réduite et un rapport signal-bruit accru comparativement à l'art antérieur.
CA002562254A 2004-04-07 2005-03-10 Procede et systeme de conversion analogique-numerique faisant appel a la modulation de largeur d'impulsion (mli) numerique Expired - Fee Related CA2562254C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/819,644 US6965339B2 (en) 2004-04-07 2004-04-07 Method and system for analog to digital conversion using digital pulse width modulation (PWM)
US10/819,644 2004-04-07
PCT/US2005/007848 WO2005104377A2 (fr) 2004-04-07 2005-03-10 Procede et systeme de conversion analogique-numerique faisant appel a la modulation de largeur d'impulsion (mli) numerique

Publications (2)

Publication Number Publication Date
CA2562254A1 CA2562254A1 (fr) 2005-11-03
CA2562254C true CA2562254C (fr) 2009-05-26

Family

ID=35060042

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002562254A Expired - Fee Related CA2562254C (fr) 2004-04-07 2005-03-10 Procede et systeme de conversion analogique-numerique faisant appel a la modulation de largeur d'impulsion (mli) numerique

Country Status (7)

Country Link
US (1) US6965339B2 (fr)
AU (1) AU2005236841A1 (fr)
CA (1) CA2562254C (fr)
DE (1) DE112005000786B4 (fr)
GB (1) GB2429125B (fr)
IL (1) IL178462A (fr)
WO (1) WO2005104377A2 (fr)

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ATE369659T1 (de) * 2003-09-22 2007-08-15 Tc Electronic As Selbstoszillierender a/d-umsetzer
US7142144B1 (en) * 2005-05-19 2006-11-28 Ami Semiconductor, Inc. Low power sigma delta modulator
FR2887091B1 (fr) * 2005-06-08 2007-08-31 Dolphin Integration Sa Convertisseur numerique-analogique
US7649957B2 (en) * 2006-03-22 2010-01-19 Freescale Semiconductor, Inc. Non-overlapping multi-stage clock generator system
US7822800B2 (en) * 2006-05-19 2010-10-26 Camco Produktions-Und Vertriebs Gmbh Fur Beschallungs-Und Beleuchtungsanlagen Apparatus and method for performing a calculation operation
US7352311B2 (en) * 2006-08-22 2008-04-01 Freescale Semiconductor, Inc. Continuous time noise shaping analog-to-digital converter
CN100417026C (zh) * 2006-12-01 2008-09-03 北京航空航天大学 模数转换器
KR100871828B1 (ko) * 2007-01-29 2008-12-03 삼성전자주식회사 히스테리시스 특성을 이용한 싱글 슬로프 ａｄｃ와 그 변환 방법, 및 상기 싱글 슬로프 adc를 구비하는 cmos 이미지 센서
DE102008041142A1 (de) 2008-01-21 2009-07-23 IHP GmbH - Innovations for High Performance Microelectronics/Institut für innovative Mikroelektronik Multibit-Modulator mit digital stellbarer Pulsdauer
US7570190B1 (en) * 2008-03-28 2009-08-04 Motorola, Inc. Method and system for operating a comparator
US7612696B2 (en) * 2008-03-28 2009-11-03 Motorola, Inc. Method and system for decimating a pulse width modulated (PWM) signal
US8634498B2 (en) * 2008-12-17 2014-01-21 Entropic Communications, Inc. Systems and methods for probing wired communication channels
GB2482134B (en) * 2010-07-20 2015-12-02 Gm Global Tech Operations Inc A method for operating an electromechanical actuator
US8659455B2 (en) * 2012-05-30 2014-02-25 Infineon Technologies Ag System and method for operating an analog to digital converter
CN103441681B (zh) * 2013-08-27 2015-05-20 成都启臣微电子有限公司 原边反馈电源变换器中动态响应加速电路
US9768792B1 (en) * 2016-12-30 2017-09-19 Itron, Inc. Asynchronous sigma-delta analog-to-digital converter
US10459856B2 (en) 2016-12-30 2019-10-29 Itron, Inc. Variable acquisition buffer length
DE102017118549B3 (de) 2017-08-15 2018-12-20 Brandenburgische Technische Universität Cottbus-Senftenberg Analog-digital-umsetzer und verfahren zur umwandlung eines ursprünglich analogen signals in ein konvertiertes digitalsignal
CN107907173A (zh) * 2017-12-14 2018-04-13 湖北天禹环保科技有限公司 一种用于超声波气体流量计的模拟数字转换器
CN111610549B (zh) * 2020-05-13 2024-11-01 明峰医疗系统股份有限公司 基于单条进位链的直接比较型fpga-adc装置
CN113556128A (zh) * 2021-07-28 2021-10-26 北京纳米维景科技有限公司 模数转换方法、模数转换控制器及其电路
CN116346096B (zh) * 2021-12-16 2026-03-06 华润微集成电路(无锡)有限公司 一种pwm信号转模拟信号方法及电路

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JPS56107788A (en) 1980-01-25 1981-08-26 Toshiba Corp Voltage inverter
GB9103777D0 (en) * 1991-02-22 1991-04-10 B & W Loudspeakers Analogue and digital convertors
US5457456A (en) * 1993-12-16 1995-10-10 At&T Ipm Corp. Data converter with programmable decimation or interpolation factor
US5786778A (en) * 1995-10-05 1998-07-28 Analog Devices, Inc. Variable sample-rate DAC/ADC/converter system
GB9607229D0 (en) * 1996-04-04 1996-06-12 Switched Reluctance Drives Ltd Analogue to digital converter
US6087968A (en) * 1997-04-16 2000-07-11 U.S. Philips Corporation Analog to digital converter comprising an asynchronous sigma delta modulator and decimating digital filter
EP1137162B1 (fr) 2000-03-23 2005-02-16 STMicroelectronics S.r.l. Circuit de contrôle analogique-digital à modulation de largeur d'impulsions
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US6445326B1 (en) * 2000-06-22 2002-09-03 Xyron Corporation High speed precision analog to digital convertor
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US6674387B1 (en) * 2002-10-02 2004-01-06 Honeywell International Inc. Pulse width modulation analog to digital conversion

Also Published As

Publication number Publication date
IL178462A0 (en) 2007-02-11
GB0621890D0 (en) 2006-12-20
IL178462A (en) 2010-12-30
DE112005000786T5 (de) 2007-03-01
GB2429125B (en) 2007-08-01
US6965339B2 (en) 2005-11-15
WO2005104377A2 (fr) 2005-11-03
DE112005000786B4 (de) 2012-08-30
WO2005104377A3 (fr) 2006-05-18
US20050225467A1 (en) 2005-10-13
CA2562254A1 (fr) 2005-11-03
GB2429125A (en) 2007-02-14
AU2005236841A1 (en) 2005-11-03

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